Abstract

We report a compact all-fiber high-energy fiber laser that consists of a laser oscillator and a compression section. The laser oscillator generates the pulses with high energy and large chirp. The compression section is made of a piece of standard single-mode fiber that dechirps the chirped pulses. The compact all-fiber fiber laser produces pulses with 8 nJ of the pulse energy and 290 fs of the pulse duration.

Autocorrelation trace of pulses before the compression. The experimental results are measured at port A in Fig. 1. The solid and dashed curves denote the experimental results and the Gauss-fit curve, respectively.

Autocorrelation trace of pulses after the compression. The experimental results are measured at port B in Fig. 1. The solid and dashed curves denote the experimental results and the Gauss-fit curve, respectively.